Heating of lock and dock gates, marine vessels, and the like.



M. MACLEOD. HEATING 0E LocK AND DOCK GATES, MARINE vEssE APPLICATION FILED NOV. 1, 1913. 1, 1 04,91 4.

LS, AND THE LIKE.

Patented July 28, 1914.

0214 .15 @at J if@ 'rf/b: NoRRls PE1-HRS ra., PHOTO-LITHQ, WASHINGTON, D. L.

MALCOLM MACLEOD, OF TORONTO, ONTARIO, (LAlQ'AIJiA.

HEATING OF LOCK AND DOCKG-ATES, MARINE- VESSELS,"AND LIKE.`

Specicationv of Letters Patent.

Patented Jul/y 2s, 1914..

Application filed November 1, 1913. Serial No. 798,769.

To all whom t may concern:

Be it known that I, MALCOLM MAcLnoD, a

subject of the King of Great Britain, and

resident of Toronto, in the Province of Ontario, Dominion of Canada, have invented certain new and useful Improvements in the Heating of Lock and Dock Gates, Marine Vessels, and the like, of which the following is thespecificaton.v p

My invention relates to the heating of lock and dock gates, marine vessels and the like, and the objects of my invention'are to prevent the formation of `ice thereon and to obviate the other objections due to such formation, and it consists essentially of `providing a heated zone-,on such vessels, dock and lock gates located partly above and partly below the water line, the parts being arranged and constructed in detail as hereinafter more particularly described by the following specification.

Figure 1 is a view partly sectional of the Vhull of a ship showing my device thereon.I

Fig. 2 is a perspective view of a lock gate showing my device attached thereto. Fig.

3 is a view of my device as it may be attached to a dock gate presently in use. Fig.

4 is a cross section of the lower part of the ate.

Like letters of reference refer to like parts in the several drawings.

Referring to the drawings, A represents part of a ship of any type consisting of an inner and an o-uter hull. 1 represents the space located between such inner and outer hull adapted to form a chamber through which hot gases are designed to be passed. The ribs of the vessel extend into such chamber 1 and are designed to act as baffle plates to the gases passing therethrough.

Any source of heat may be employed and the gases after leaving the hull are returned to be reheated at the source of supply.

Referring to Figs. 2, 3 and 4, B represents a lock gate hinged in the usual manner to the supporting wall C. D represents a casing attached thereto and extending along the lower part of the gate, such casing consisting of an outer shell 2 designed to form a space 9 between the face 3 of the gate B and the inner face 4 of the shell 2, the edges of the said casing being flanged as shown at 8, and adapted to be secured to the said gate by means of the rivets 7 The space 9 is subdivided by vertical baffle plates 10 xed to the top and bottom sides and extending nearly to the opposing face. resents the inlet from the source of supply of the hot gaswhich passing betweenV the baille plates 10 is discharged through the pipe 12 to be reheated at the source of supply. 13 represents a casing extending, in

and along the supporting wallC. 14 representsa pipe through which hot gases are supplied to the casing 13, the comparativelyy cold gases being carried'fback to the source of supply byA means of a rpipe not shown. The caslngs D and 13 are also adapted to be secured to a lock gate already in use, butr the method of rfixing the casings varies 1n each case with the existing conditions. The

vmethod,utilized of securing thefcasing 2 to the gate, as shown in Fig. 3, is the same as that shown in Fig. 2 and shown in detail in Fig. 4. The casing 13 will whenever possible be built into the wall as shown in Fig. 2, or supported-in any other suitable manner which will, depend entirely on the structure of the lock gate. In Fig. 3 a piece of timber is located above the casings 2 and 13 and attached thereto by the pipes 11 and 12 and the pipe 14 and by any other suitable manner, such as bolts etc. should it be found necessary, such timber being designed to protect the casings 'from impact with vessels or any other floating object.

Although my device is here shown adapted to hot gases it can also be arranged yto suit electrical and other means of heating and is adapted to be fixed to vessels, water gates of all classes, dry docks, flumes, wharves and the like.

It will be seen by the use of this device that dock gates and the like which are capable of being rendered useless during cold weather are always kept in a fit condition to be easily and effectively used.

As many changes could be made in the above construction and many apparently widely dilferent embodiments of my 1nven casing, and means of supplying heat thereto, as and for the purpose specified. o

2. The combination with a lool: gate of a casing extending on and along the bottom part of such gate, a casing located in the supporting walls of sucligate and means of supplying heat thereto, as and for the purpose specified.

3. The combination with lock gates of a casing extending on and along the bottom part of such gate, a casing located in the Walls means of protecting such casings and means of supplying heat to such casings, as and for the purpose specified.

4. The combination With lock gates of a casing extending along the bottom part thereof, a casing located in the supporting Wall of such lock gate, a rectangular strip of resilient material extendingk along and above the top of such casings, and means of supplying heat to such casings, as and for the purpose specified.

5. The combination With lock gates of a casing extending on and along the bottom part thereof, baffle plates located in said casing, a casingl attached'to the supporting Wall of such gate, baffle plates located in said casing and means of supplying heat to such casings, as and for the purpo-se specified.

6. The combination With a lock gate, of a casing extending `on and along the bottom part thereof, balile plates located in said casing, a casing attachedv to the supporting Wall of such gate, baffle plates located in said casing, inlet pipes connected to such casings through which hot gases are designed to be passed and discharge pipes connected to said casings, as and for the purpose specified.

In Witness whereof I have hereunto set my hand in the presence of tWo Witnesses.

MALCOLM MAGLEOD. l

Y Witnesses:

RUSSEL S. SMART, P. M. GARRoW.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Washington, D. C.

Patents, 

